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Título: First Evidence that Hatchlings of Chelonia mydas Emit Sounds
Autor(es): camila rudge ferrara
Jeanne A. Mortimer
Richard Carl Vogt
Assunto: Conservacao, Quelonios, Ecologia
turtle vocalization
ISSN: 0045-8511
Revista: Copeia
Volume: 2014
Resumo: Communication is the interchange of information between two or more individuals, where it is clear who is the sender and who is the receiver of the signal (Krebs and Davis, 1993). Early reports of communication between chelonians were based primarily on visual and olfactory signals (Kiester, 1977; Alho and Pa ́dua, 1982; Galeotti et al., 2005a), tactile senses (Auffenberg, 1977), and on vocalizations observed during mating in some species (Frazier and Peters, 1981; Sacchi et al., 2003; Galeotti et al., 2005a, 2005b, 2005c). Recent studies show that subtle acoustic signals may be important to social behavior and reproduction in aquatic turtles (Giles et al., 2009; Ferrara et al., 2012), as they relate to hatchlings and embryos (Ferrara et al., 2012, in press). The structure of the emission of a particular signal may offer indications of the type of information being transmitted (Marler, 1977). The acoustic repertoire of several aquatic turtles (Chelodina colliei [Giles et al., 2009], Podocnemis expansa [Ferrara et al., 2012], and Dermochelys coriacea [Ferrara et al., in press]) include complex signals that have characteristics of contact calls, thus demonstrating social interactions among individuals. We report episodes of sound production by newly hatched green turtles (Chelonia mydas) that were recorded in 1978 by the second author (JAM) at Ascension Island. In 2013, the recordings were digitized and analyzed in order to verify that green turtle hatchlings emitted the sounds, to assess their structure, and to compare them with sounds produced by other hatchling turtles (Ferrara et al., 2012, in press). We also explore how the structure of these sounds may relate to the behavior of predators on sea turtle eggs and hatchlings.
ISSN: 0045-8511
Aparece nas coleções:Coordenação de Biodiversidade (CBIO)

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